NAME

       brlapi_driverspecific - Driver-Specific modes

        - Raw and Suspend Modes mechanism.

SYNOPSIS

   Functions
       int BRLAPI_STDCALL brlapi_enterRawMode (const char *driver)
       int BRLAPI_STDCALL brlapi__enterRawMode (brlapi_handle_t *handle, const char *driver)
       int BRLAPI_STDCALL brlapi_leaveRawMode (void)
       int BRLAPI_STDCALL brlapi__leaveRawMode (brlapi_handle_t *handle)
       ssize_t BRLAPI_STDCALL brlapi_sendRaw (const void *buffer, size_t size)
       ssize_t BRLAPI_STDCALL brlapi__sendRaw (brlapi_handle_t *handle, const void *buffer,
           size_t size)
       ssize_t BRLAPI_STDCALL brlapi_recvRaw (void *buffer, size_t size)
       ssize_t BRLAPI_STDCALL brlapi__recvRaw (brlapi_handle_t *handle, void *buffer, size_t
           size)
       int BRLAPI_STDCALL brlapi_suspendDriver (const char *driver)
       int BRLAPI_STDCALL brlapi__suspendDriver (brlapi_handle_t *handle, const char *driver)
       int BRLAPI_STDCALL brlapi_resumeDriver (void)
       int BRLAPI_STDCALL brlapi__resumeDriver (brlapi_handle_t *handle)

Detailed Description

       If the application wants to directly talk to the braille terminal, it should use Raw Mode.
       In this special mode, the driver gives the whole control of the terminal to it: brltty
       doesn't work any more.

       For this, it simply has to call brlapi_enterRawMode(), then brlapi_sendRaw() and
       brlapi_recvRaw(), and finally give control back thanks to brlapi_leaveRawMode().

       Special care of the terminal should be taken, since one might completely trash the
       terminal's data, or even lock it! The application should always check for terminal's type
       thanks to brlapi_getDriverName().

       The client can also make brltty close the driver by using brlapi_suspendDriver(), and
       resume it again with brlapi_resumeDriver(). This should not be used if possible: raw mode
       should be sufficient for any use. If not, please ask for features :)

Function Documentation

   int BRLAPI_STDCALL brlapi__enterRawMode (brlapi_handle_t * handle, const char * driver)
   int BRLAPI_STDCALL brlapi__leaveRawMode (brlapi_handle_t * handle)
   ssize_t BRLAPI_STDCALL brlapi__recvRaw (brlapi_handle_t * handle, void * buffer, size_t size)
   int BRLAPI_STDCALL brlapi__resumeDriver (brlapi_handle_t * handle)
   ssize_t BRLAPI_STDCALL brlapi__sendRaw (brlapi_handle_t * handle, const void * buffer, size_t
       size)
   int BRLAPI_STDCALL brlapi__suspendDriver (brlapi_handle_t * handle, const char * driver)
   int BRLAPI_STDCALL brlapi_enterRawMode (const char * driver)
       Switch to Raw mode

       TODO: document which functions work in raw mode.

       Parameters
           driver Specifies the name of the driver for which the raw communication will be
           established.

       Returns
           0 on success, -1 on error

   int BRLAPI_STDCALL brlapi_leaveRawMode (void)
       Leave Raw mode

       Returns
           0 on success, -1 on error

   ssize_t BRLAPI_STDCALL brlapi_recvRaw (void * buffer, size_t size)
       Get Raw data

       Parameters
           buffer points on a buffer where the function will store the received data;
           size holds the buffer size.

       Returns
           its size, -1 on error, or on interruption by a signal or a parameter change
           notification, in which case brlapi_errno will be BRLAPI_ERROR_LIBCERR and errno will
           be EINTR.

   int BRLAPI_STDCALL brlapi_resumeDriver (void)
       Resume braille driver

       Returns
           -1 on error

   ssize_t BRLAPI_STDCALL brlapi_sendRaw (const void * buffer, size_t size)
       Send Raw data

       Parameters
           buffer points on the data;
           size holds the packet size.

       Returns
           size on success, -1 on error

   int BRLAPI_STDCALL brlapi_suspendDriver (const char * driver)
       Suspend braille driver

       Parameters
           driver Specifies the name of the driver which will be suspended.

       Returns
           -1 on error

Author

       Generated automatically by Doxygen for BrlAPI from the source code.